import javax.xml.namespace.QName;

public class Main {
    public static void main(String[] args) {
        //new 创建类的对象 实例化
//        Student student = new Student("张三",1001,"男",18,90.1,2,true,"12345678910");
//        student.disiplayinfo();
//        Course course = new Course("Math",1011,3);
//        course.displayCourseInfo();
//        BankAccount bankAccount = new BankAccount("123456789",10000,"张三");
//        bankAccount.displayAccountInfo();
//        bankAccount.withdraw(500);
//        bankAccount.displayAccountInfo();
//        bankAccount.deposit(500);
//        bankAccount.displayAccountInfo();
//        System.out.println(bankAccount.getAccountHolder());

        LibraryBook book = new LibraryBook("鲁冰逊漂流记", "jack", "1111", "可借");
        book.diasplayInfo();
    }
}
